Computing-scale.



PATENTED FEB. 18, 1908.

W PETBRKIN COMPUTING SCALE. APPLICATION rmm JULY :0. 190a.

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JNql El t ui m in Also i WALTER PETER-Lilli, OF N YORK, N. Y

Specification of letters .Patent.

Application filed July 20. 1903: Serial llo. 327.028.

Computingficelc of which the following is s full, clear, and exactdescription.

This invention relates to computing scales,

end the object of the invention is to produce a. scale of simpleconstruction which will operate to indicate the cost of any articleweighed, at sny price per pound.

The invention consists in the construction and combination of parts tobe more fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings forming port of thisspecification, in which similar characters of reference indicatecorresponding ports in all the figures.

Figure 1 is a front elevation of a scale constructed according to myinvention; Fig. 2 is a plan; and Fig. 3 is a detail view, 3 of Referringmore particularly to the parts, 1 represents a base of any suitableform, near one end whereof a, weighing scale 2 is providcd, the samebeing of any suitable construction and presenting it plate 3 upon whichthe article to be weighed is placed, and an indicating disl as shown.The hose 1 is preferably of'elonga-ted form and is provided with s pairof posts 4 and 5. Near their upper portions the posts 4 and 5 areprovided with brackets 6 which support rotstebly a gear spindle 7.Between the brackets 6 the spindle '7 is formed with longitudinalgrooves as indicated in Fig. 3, so that its surisce is fluted or formedwith teeth 8 which extend continuously throughout substontiolly theentire length of the spindle. At the post 5 the gear spindle 7 isextended and provided with e bevel gear 9 which meshes with a similarbevel gear 10, the

letter gear being carried upon a, vertical arbor ll of s computing dial12, the said dial being mounted upon the upper extremity of the post 5as shown. The arbor 11 projects above the dial 12 and is provided with ahzind 0r pointer 13.

Extending parallel with the gear spindle7 I provide a. guide her 14, theextremities whereof are mounted in the hreclrets 6. Slidshly mounted onthis guide 14 there is arranged it shoe 15 as indicated most clearly in3; this shoe constitutes a ver ticsl guide "for s vertically disgcsedreel: 16, the teeth whereof engsge the teeth 8 of the gear spindle 7. sThis shoe 15 is formed with e pointer 17 which projects lsterslly so asto lie over a price scale 18, which scale is stwtechs to the brackets 6and extends longitudina ly with the guide her the gear spindle as shown.The 1 wer extremity of the rack 16 attached by s pivot pin 19 to a,sliding sleeve 20 "which is mounted upon a main lever 21. This mainlever extends substantially parallel with the gesr spindle 7, end itsextremity remote from the scale 2 is preferably attached at 22 to thepost 5. Its free externiity is slidsbly mounted on the lower extremityof s bracket 23' which extends dowmvsrdly from the scale pen or plateThe dial of the wei rhing scale 2 is that of an ordinary iveigl' gscale, with which a pointer cooperates, tie ssid pointer beingcontrolled by the weight on the or plate 3. The diol i2 is provided withdivisions which indicate cents, the some being nuni. bered 5, 1O, 15,20, etc, having smaller divisions there-between. The numbers rosy run to100, as indicated in Fig. 2, so that s complete revolution of the hand13 will indicate one dollar.

The price scale 18 is numbered from the right to the left, with numberssuch as the. numbers 5, 1'1), 15, etc., which indicate different pricesper pound, of provisions which may he weiqhed upon the settle 2, endthese divisions are provided. With sub-divisions indicating anyinterinedidte price .7 pound.

From the construction. dcscnoed, it will be evident that if thescale-plate 3 is depres-sed, the'lever 21 will he do ing with it therock 16.

Tie amount of moveriient of this reel: will evidently depend oo rotatethe pointer or hon 13 to the number 110 resscd, cerry- I If this pointeris placed at 5; if the weight upon the plate 3 is two )ounds, the hand13 will move to the number 10, indicating that the cost of the articleis ten cents. In every case, the amount of rotation of the hand 13 isproportional to the distance of the pointer 17 from the fulcrum 22, whenthe computing dial will indicate accurately the cost of any articlehaving a predetermined price per pound.

The pivot pin 19, which connects the rack 16 with the sleeve 20, has itsaxis disposed in a plane at right angles to the plane in which the lever21 and the rack lie, so that there is no tendency for the rack to bindin the shoe 15, and there is no tendency for the rack to shift the shoelongitudinally on the guide bar.

While the computing mechanism of the scale is intended primarily to beused in connection with weighing scales, evidently these features may beused in connection with measurim instruments of any kind. In thisaspect, t '16 weighing scale may be considered as a measuring device.

The scale described constitutes a convenient counter scale to be used instores or similar places where small quantities or weights of provisionsor materials of any kind are to be sold.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. In combination, a measuring device, a lever adapted to be actuatedthereby, a spindle extending longitudinally with respect to said lever,a member connecting said spindle and said lever, adapted to rotate saidspindle and having means for adjustment thereupon, and a computing dialactuated by said spindle.

2. In combination, a measuring device, a lever adapted to be actuated bysaid measuring device, a spindle extending substantially parallel withsaid lever, a rack connected with said lever and adapted to rotate saidspindle, a computing dial, and a hand cooperating with said dial andactuated by said spindle.

3. In combination, a measuring device, a

lever actuated by said measuring device, a

sleeve slidably mounted on said lever, a rack pivotally attached to saidsleeve, a spindle extending longitudinally with said lever and engagingsaid rack, whereby said rack may rotate said spindle, a computing scale,and a hand carried near the face of said dial and actuated by saidspindle.

4. In a computing device, in combination, a computing dial, a spindleadapted to actuate the same, a lever, a member adjustably mounted onsaid lever and engaging said spindle to rotate the same, and a pricescale extending longitudinally of said spindle, and means for indicating.the position of said member upon said scale.

5. In a device of the'class described, in combination, a weighing scale,a spindle, a guide bar disposed substantially parallel with saidspindle, a shoe slidably mounted on said guide bar, a member mounted insaid shoe and adapted to rotate said spindle, a lever actuated by saidscale, a connection between said member and said lever, a computingdial, and a hand cooperating therewith and actuated by said spindle.

6. In a device of the class described, in

combination, a weighing scale, a lever having a fulcrum having itsfreeextremity connected with said scale to be actuated thereby, aspindle extending longitudinally with said lever, a rack engaging said.spindle and connected with said lever whereby said lever may rotate saidspindle, a price scale extending longitudinally of said spindle andhavin divisions numbered progressively from said fulcrum toward the freeend of said lever, and a com uting dial controlled by said spindle.

7. n a deviceof the class described, in combination, a weighing scalepresentin a depressible plate, a lever, a connection etween the free endof said lever and said plate whereby a depression of said plate may movesaid lever, a gear spindle, a rack engaging said spindle and adapted torotate the same, a sleeve slidably mounted on said lever and having apivotal connection wit] said rack, a price scale extendinglongitudinally of said spindle and having divisions numberedprogressively from the fulcrum of said lever toward the free extremitythereof, and a computing dial controlled by-said gear spindle.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WALTER PETERKIN. Witnesses:

F. l). AMMEN, .Iuo. M. RI'ITER.

